Coupler Lock

Why not close the coupler and use a standard pad lock?
Theif would have to cut pad lock.

I don't know what you mean by "staying up inside". I had one like this I used for years on 3 different travel trailers. The bottom part fits flush to the bottom of the coupler and the metal bar over the top is pushed down tight on the top of the coupler. There's no room for anything to move.



You can pick these up anywhere.

It's probably not the "securist" model out there, like stated above, a thief will wrap a chain and go. But if all you need is a deterrent, it's as good as any other.

Hi and welcome to the forum.

I grew up around Mt Morris, went to Beecher Schools.

I worked for a locksmith for awhile and there aren’t any commercial locks for 2 3/4 balls that I know of. I don’t think it matters tho as thieves will wrap chains around the A frame and a tall hitch and take the trailer that way.

You can run a cable and or a chain through your rims and have a hitch lock: you want them to give up after a few minutes and move on our find easier pickings.

One guy left his ball mount/hitch locked in the ball turn backwards wrapped in chains around the A frame.

Good luck..

The Master lock I use could well fit a 2 3/4 ball.

https://www.etrailer.com/Trailer-Coupler-Locks/Master-Lock/ML389DAT.html?feed=npn&gclid=EAIaIQobChMIlrDOsvHX3gIVgUwNCh1XzQD0EAQYASABEgJr7PD_BwE